Worm Gear Operated Double Flanged Connection Butterfly Valves
We depend on sturdy technical force and continually create sophisticated technologies to meet the demand of Worm Gear Operated Double Flanged Connection Butterfly Valves, With a wide range, top quality, realistic costs and good company, we are going to be your most effective company partner. We welcome new and aged clients from all walks of daily life to call us for long term small business interactions and acquiring mutual achievements!
We depend on sturdy technical force and continually create sophisticated technologies to meet the demand of Butterfly Valves and Worm Gear Butterfly Valves, Customer’s satisfaction is always our quest, creating value for customers is always our duty, a long term mutual-beneficial business relationship is what we’re doing for. We have been an absolutely reliable partner for you personally in China. Of course, other services, like consulting, can be offered too.
Description:
UD Series hard seated butterfly valve is Wafer pattern with flanges ,the face to face is EN558-1 20 series as wafer type.
Material of Main Parts:
| Parts | Material |
| Body | CI,DI,WCB,ALB,CF8,CF8M |
| Disc | DI,WCB,ALB,CF8,CF8M,Rubber Lined Disc,Duplex stainless steel,Monel |
| Stem | SS416,SS420,SS431,17-4PH |
| Seat | NBR,EPDM,Viton,PTFE |
| Taper Pin | SS416,SS420,SS431,17-4PH |
Characteristics:
1.Correcting holes are made on flange according to standard, easy correcting during the installation.
2.Through-out bolt or one-side bolt used,easy replacing and maintenance.
3. Phenolic backed seat or aluminium backed seat:Non-collapsible,stretch resistant,blow out proof,field replaceble.
Applications:
Water and waste water treatment,sea water desalination,irrigation,cooling system,electric power,sulfur removal,petroleum refining,oilfield,mining,HAVC,etc
Dimensions:

| DN | A | B | H | D0 | C | D | K | d | N-do | 4-M | b | D1 | D2 | N-d1 | F | Φ2 | W | J | ||||
| 10 | 16 | 10 | 16 | 10 | 16 | 10 | 16 | |||||||||||||||
| 150 | 226 | 139 | 28 | 156 | 56 | 285 | 240 | 240 | 188 | 8-23 | 8-23 | ─ | ─ | 19 | 90 | 70 | 4-10 | 13 | 18.92 | 5 | 20.92 | |
| 200 | 260 | 175 | 38 | 202 | 60 | 340 | 295 | 295 | 238 | 8-23 | 12-23 | ─ | ─ | 20 | 125 | 102 | 4-12 | 15 | 22.1 | 5 | 24.1 | |
| 250 | 292 | 203 | 38 | 250 | 68 | 405 | 350 | 355 | 292 | 12-23 | 12-28 | ─ | ─ | 22 | 125 | 102 | 4-12 | 15 | 28.45 | 8 | 31.45 | |
| 300 | 337 | 242 | 38 | 302 | 78 | 460 | 400 | 410 | 344 | 12-23 | 16-28 | ─ | ─ | 24.5 | 125 | 102 | 4-12 | 20 | 31.6 | 8 | 34.6 | |
| 350 | 368 | 267 | 45 | 333 | 78 | 520 | 460 | 470 | 374 | 16-23 | 12-31 | ─ | ─ | 24.5 | 150 | 125 | 4-14 | 20 | 31.6 | 8 | 34.6 | |
| 400 | 400 | 325 | 51 | 390 | 102 | 580 | 515 | 525 | 440 | 12-28 | 16-31 | 4-M24 | 4-M27 | 24.5 | 175 | 140 | 4-18 | 22 | 33.15 | 10 | 36.15 | |
| 450 | 422 | 345 | 51 | 441 | 114 | 640 | 565 | 585 | 491 | 16-28 | 16-31 | 4-M24 | 4-M27 | 25.5 | 175 | 140 | 4-18 | 22 | 37.95 | 10 | 40.95 | |
| 500 | 480 | 378 | 57 | 492 | 127 | 715 | 620 | 650 | 535 | 16-28 | 16-34 | 4-M24 | 4-M30 | 26.5 | 175 | 140 | 4-18 | 22 | 41.12 | 10 | 44.12 | |
| 600 | 562 | 475 | 70 | 593 | 154 | 840 | 725 | 770 | 654 | 16-31 | 16-37 | 4-M27 | 4-M33 | 30 | 210 | 165 | 4-22 | 22 | 50.63 | 16 | 54.65 | |
| 700 | 624 | 543 | 66 | 695 | 165 | 910 | 840 | 840 | 744 | 20-31 | 20-37 | 4-M27 | 4-M33 | 32.5 | 300 | 254 | 8-18 | 30 | 63.35 | 18 | 71.4 | |
| 800 | 672 | 606 | 66 | 795 | 190 | 1025 | 950 | 950 | 850 | 20-34 | 20-41 | 4-M30 | 4-M36 | 35 | 300 | 254 | 8-18 | 30 | 63.35 | 18 | 71.4 | |
| 900 | 720 | 670 | 110 | 865 | 200 | 1125 | 1050 | 1050 | 947 | 24-34 | 24-41 | 4-M30 | 4-M36 | 37.5 | 300 | 254 | 8-18 | 34 | 75 | 20 | 84 | |
| 1000 | 800 | 735 | 135 | 965 | 216 | 1255 | 1160 | 1170 | 1053 | 24-37 | 24-44 | 4-M33 | 4-M39 | 40 | 300 | 254 | 8-18 | 34 | 85 | 22 | 95 | |
| 1100 | 870 | 806 | 150 | 1065 | 251 | 1355 | 1270 | 1270 | 1153 | 28-37 | 28-44 | 4-M33 | 4-M39 | 42.5 | 350 | 298 | 8-22 | 34 | 95 | 25 | 105 | |
| 1200 | 940 | 878 | 150 | 1160 | 254 | 1485 | 1380 | 1390 | 1264 | 28-41 | 28-50 | 4-M36 | 4-M45 | 45 | 350 | 298 | 8-22 | 34 | 105 | 28 | 117 | |
We depend on sturdy technical force and continually create sophisticated technologies to meet the demand of Worm Gear Operated Double Flanged Connection Butterfly Valves, With a wide range, top quality, realistic costs and good company, we are going to be your most effective company partner. We welcome new and aged clients from all walks of daily life to call us for long term small business interactions and acquiring mutual achievements!
Butterfly Valves and Worm Gear Butterfly Valves, Customer’s satisfaction is always our quest, creating value for customers is always our duty, a long term mutual-beneficial business relationship is what we’re doing for. We have been an absolutely reliable partner for you personally in China. Of course, other services, like consulting, can be offered too.







